Mining operations boomed in Tibet after the opening of the Gormo-Lhasa railway line in 2006. Tibet has witnessed repeated protests at various mining sites by locals against the government-backed mining companies. In 2009, following regular appeals made by Tibetans in Gyama, Central Tibet to the local authorities against large scale gold mining which was causing irrevocable damage to the ecology, armed security personnel were sent into the region to arrest and intimidate Tibetans from carrying out further protests. In April 2011 Tibetans in Rebkong, in the Qinghai province in the northeast Tibet, were arrested and imprisoned on false charges after they filed numerous grievances and complaints to the local authorities and to the central government against a mining company digging for gold in the upper reaches of Rebkong area. The water of Gu Chu river, originating from a mountain revered for generations in Ku-Dhe Karong, is being used for consumption by Tibetans and their animal herds. But a gold mining by the Chinese government which was built approximately in 2001, polluted the river and put in danger sources of livelihood. In fact the waste generated from the gold mining activities are being openly dumped on the pastures with least concerns, destroying the local biodiversity . An other issue of concern is the sanctity of the territory because there are nine different prayer sites for travelers and pilgrims and it’s considered the home of a divinity . Consequently the local residents many times have laid down to the local authority numerous complaints against the gold miners, but without any reply. Instead, their complaint turned against the villagers; in fact according to an anonymous source, four men have been implicated into courts for two years and at the end imprisoned in Siling prison, and two person were wandering the pastures to escape by the police.  Unfortunately there isn't much information about the protest related to the environmental impacts by the gold mining and about what happened to the protesters. Certainly in this territory the sacredness of the mountains and the political awareness about the Tibetan situation, originated many protests against the Chinese authorities and many immolation episodes beyond the environmental issue and there are many articles and report about that   .